Polyaniline nanocomposites based sensor array for breath ammonia analysis. Portable e-nose approach to non-invasive diagnosis of chronic kidney disease

•An electronic nose has been developed based on polyaniline nanocomposite sensor array.•Concentration ranges of ammonia can be discriminated in a simulated human breath.•Using a sensor array reduces drift, repeatability or fault hazards associated with the use of a single polyaniline sensor.•Selecti...

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